N = New listing appearing on list for first timeR = Item returning to the list after having been off for 1 or more weeks

Commentary:

Posting was delayed this week; although this is going up on Monday morning, the data was collected last Friday morning as usual.

The Legend of Korra: Turf Wars Part One doesn't go on sale until August, but for whatever reason the pre-order jumped up to #1 this week (and part 2, not due out until January, also charts in the top 50 this week).

The top debut this week is The Adventure Zone: Here There Be Gerblins, which appears to be a graphic novel adaptation of rather popular podcast that I have never heard of before. (Not surprising, as I'm not especially up on podcasts...) It's not due out until April 2018.

Also debuting this week are a couple of Kindle issues of comic series (Dark Days: The Casting & Pierce Brown's Red Rising: Sons of Ares) and, oddly, Tom Gauld's Mooncop.